Theme: Getting your just desserts - No pie, let them eat CAKE.
57A. Simple thing to do ... and what each starred clue's answer ends with?: PIECE OF CAKE
20A. *Moon's alleged makeup: GREEN CHEESE. Cheese cake.
40A. *Indian spiced drink: CHAI TEA. Tea cake.
11D. *Pre-euro Dublin currency: IRISH POUND. Pound cake.
29D. *Loofah: BATH SPONGE. Sponge cake.
Argyle here. Pinwheel grid. Pleasing.
Across:
1. "Get outta here!": "SCRAM!"
6. Computers with Apple cores: MACs
10. Designer Ricci: NINA. Nina Ricci. A fashion house founded by Maria "Nina" Ricci and her son Robert in Paris in 1932. Wiki link
14. Slip 'N Slide maker: WHAMO
15. Peter Fonda's title beekeeper: ULEE. "Ulee's Gold"{1997}.
16. Pesky one: BRAT
17. Insurance giant: AETNA
18. Nat or Natalie: COLE
19. Verdi title princess: AIDA
23. Respectful address: SIR
24. __ Lee: dessert brand: SARA
25. "South Pacific" song: "BALI HA'I"
27. Red ink item: DEBT
30. "Yikes!": "ACK!"
32. Fraidy-cat: WIMP
33. Hedging response: "I MAY"
34. Billy Joel's "__ Always a Woman": SHE'S
36. Actress Deschanel of "New Girl": ZOOEY
39. Cambridge sch.: MIT. (Massachusetts Institute of Technology)
42. Spanish "a": UNA
43. Old anesthetic: ETHER
45. Lee of Marvel Comics: STAN. He has made several appearances on TBBT.
46. Cutting sound: SNIP
47. Hits the slopes: SKIs
49. Eur. realm until 1806: HRE. (Holy Roman Empire)
50. Puts two and two together: ADDs
51. Hangs crudely, as a dorm poster: TAPES UP
54. 1982 Disney sci-fi film: "TRON"
56. Sis' counterpart, and sometime rival: BRO'
62. Charged atoms: IONs
64. Stepped (on): TROD
65. Heart chambers: ATRIA
66. Fierce anger: RAGE. Partner of "rant".
67. Words following a guesstimate: OR SO
68. Sea birds: GULLS
69. Sketched: DREW
70. Sought-after private of film: RYAN. "Saving Private Ryan (1998)"
71. Overact: EMOTE
Down:
1. Pirate's booty: SWAG
2. One-named "Mask" actress: CHER. "School Registration"
3. Give stars to: RATE
4. Official forgiveness: AMNESTY
5. Animated Disney film with a Polynesian heroine: MOANA. (2016)
6. Spanish girls: MUCHACHAS. Boys are muchachos,.
7. Soothing gel ingredient: ALOE
8. TMZ figure: CELEB. (celebrity) TMZ Wiki link
9. Playground fixture for two: SEESAW
10. Steph Curry's org.: NBA. (National Basketball Association)
12. 1976 Olympics star Comaneci: NADIA
13. Arcade pioneer: ATARI
21. Sound of cymbals: [CRASH!]
22. "My Fair Lady" role: ELIZA
26. "I think," in texts: IMO. (in my opinion)
27. Thin coin: DIME
28. Let off, as steam: EMIT
31. Mets star Hernandez who dated Elaine in a two-part "Seinfeld": KEITH
35. Initiated, as a task: STARTED ON
37. Oklahoma city: ENID
38. Puppy sounds: YAPs. Not YIPS today.
40. Like fresh chips: CRISP
41. Beginning of el año: ENERO. Spanish.
44. Just __ by: barely make it: EKE
46. Holy spot: SANCTUM
48. Beau-to-be, hopefully: SUITOR
51. Classic Ford auto: T-BIRD
52. Wildly cheering: AROAR
53. Sportswear designer Ellis: PERRY. Perry Ellis, American fashion designer who founded his eponymous sportswear house in the mid-1970s.
55. No longer a minor: OF AGE
58. Thing, to Tomás: COSA. Spanish.
59. Guthrie of folk: ARLO
60. Bagpiper's attire: KILT
61. Let up: EASE
63. Stitch: SEW
Argyle